./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d44823aac48cec2911f68e219166f3ac1836e56b97e3a905bce4580d699376f2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 18:00:05,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 18:00:05,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 18:00:05,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 18:00:05,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 18:00:05,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 18:00:05,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 18:00:05,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 18:00:05,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 18:00:05,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 18:00:05,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 18:00:05,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 18:00:05,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 18:00:05,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 18:00:05,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 18:00:05,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 18:00:05,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 18:00:05,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 18:00:05,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 18:00:05,914 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 18:00:05,915 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 18:00:05,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 18:00:05,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 18:00:05,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 18:00:05,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 18:00:05,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 18:00:05,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 18:00:05,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 18:00:05,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 18:00:05,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 18:00:05,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 18:00:05,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 18:00:05,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 18:00:05,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 18:00:05,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 18:00:05,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 18:00:05,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 18:00:05,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 18:00:05,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 18:00:05,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 18:00:05,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 18:00:05,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 18:00:05,934 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 18:00:05,963 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 18:00:05,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 18:00:05,987 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 18:00:05,987 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 18:00:05,988 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 18:00:05,988 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 18:00:05,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 18:00:05,989 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 18:00:05,989 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 18:00:05,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 18:00:05,990 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 18:00:05,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 18:00:05,990 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 18:00:05,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 18:00:05,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 18:00:05,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 18:00:05,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 18:00:05,990 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 18:00:05,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 18:00:05,990 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 18:00:05,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 18:00:05,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 18:00:05,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 18:00:05,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 18:00:05,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:00:05,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 18:00:05,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 18:00:05,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 18:00:05,991 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 18:00:05,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 18:00:05,991 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 18:00:05,992 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 18:00:05,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 18:00:05,992 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d44823aac48cec2911f68e219166f3ac1836e56b97e3a905bce4580d699376f2 [2022-07-13 18:00:06,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 18:00:06,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 18:00:06,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 18:00:06,245 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 18:00:06,245 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 18:00:06,246 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2022-07-13 18:00:06,308 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/594d9302a/2871a8286f4240c9b3501bbe7f452129/FLAG65465c874 [2022-07-13 18:00:06,819 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 18:00:06,821 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2022-07-13 18:00:06,834 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/594d9302a/2871a8286f4240c9b3501bbe7f452129/FLAG65465c874 [2022-07-13 18:00:07,309 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/594d9302a/2871a8286f4240c9b3501bbe7f452129 [2022-07-13 18:00:07,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 18:00:07,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 18:00:07,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 18:00:07,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 18:00:07,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 18:00:07,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:00:07" (1/1) ... [2022-07-13 18:00:07,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@763f1f0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:00:07, skipping insertion in model container [2022-07-13 18:00:07,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:00:07" (1/1) ... [2022-07-13 18:00:07,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 18:00:07,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 18:00:07,769 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c[13010,13023] [2022-07-13 18:00:07,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:00:07,833 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 18:00:07,887 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c[13010,13023] [2022-07-13 18:00:07,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 18:00:07,962 INFO L208 MainTranslator]: Completed translation [2022-07-13 18:00:07,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:00:07 WrapperNode [2022-07-13 18:00:07,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 18:00:07,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 18:00:07,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 18:00:07,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 18:00:07,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:00:07" (1/1) ... [2022-07-13 18:00:08,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:00:07" (1/1) ... [2022-07-13 18:00:08,089 INFO L137 Inliner]: procedures = 56, calls = 155, calls flagged for inlining = 25, calls inlined = 21, statements flattened = 260 [2022-07-13 18:00:08,090 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 18:00:08,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 18:00:08,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 18:00:08,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 18:00:08,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:00:07" (1/1) ... [2022-07-13 18:00:08,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:00:07" (1/1) ... [2022-07-13 18:00:08,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:00:07" (1/1) ... [2022-07-13 18:00:08,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:00:07" (1/1) ... [2022-07-13 18:00:08,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:00:07" (1/1) ... [2022-07-13 18:00:08,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:00:07" (1/1) ... [2022-07-13 18:00:08,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:00:07" (1/1) ... [2022-07-13 18:00:08,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 18:00:08,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 18:00:08,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 18:00:08,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 18:00:08,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:00:07" (1/1) ... [2022-07-13 18:00:08,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 18:00:08,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 18:00:08,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 18:00:08,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 18:00:08,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 18:00:08,299 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-13 18:00:08,299 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-13 18:00:08,299 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-13 18:00:08,299 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-13 18:00:08,319 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-13 18:00:08,319 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-13 18:00:08,320 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-07-13 18:00:08,320 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-07-13 18:00:08,320 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-13 18:00:08,320 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-13 18:00:08,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 18:00:08,320 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-13 18:00:08,320 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-13 18:00:08,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 18:00:08,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 18:00:08,414 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 18:00:08,428 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 18:00:08,810 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 18:00:08,815 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 18:00:08,832 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 18:00:08,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:00:08 BoogieIcfgContainer [2022-07-13 18:00:08,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 18:00:08,835 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 18:00:08,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 18:00:08,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 18:00:08,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:00:07" (1/3) ... [2022-07-13 18:00:08,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f255f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:00:08, skipping insertion in model container [2022-07-13 18:00:08,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:00:07" (2/3) ... [2022-07-13 18:00:08,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f255f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:00:08, skipping insertion in model container [2022-07-13 18:00:08,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:00:08" (3/3) ... [2022-07-13 18:00:08,842 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2022-07-13 18:00:08,860 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 18:00:08,874 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 18:00:08,961 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 18:00:08,984 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@34e5d9d1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7b814514 [2022-07-13 18:00:08,984 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 18:00:08,995 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 65 states have (on average 1.4) internal successors, (91), 73 states have internal predecessors, (91), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-07-13 18:00:09,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-13 18:00:09,002 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:00:09,002 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:00:09,003 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:00:09,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:00:09,013 INFO L85 PathProgramCache]: Analyzing trace with hash -340967460, now seen corresponding path program 1 times [2022-07-13 18:00:09,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:00:09,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186285536] [2022-07-13 18:00:09,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:00:09,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:00:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:09,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:00:09,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:00:09,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186285536] [2022-07-13 18:00:09,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186285536] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:00:09,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:00:09,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 18:00:09,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309293635] [2022-07-13 18:00:09,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:00:09,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 18:00:09,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:00:09,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 18:00:09,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 18:00:09,398 INFO L87 Difference]: Start difference. First operand has 83 states, 65 states have (on average 1.4) internal successors, (91), 73 states have internal predecessors, (91), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:00:09,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:00:09,459 INFO L93 Difference]: Finished difference Result 158 states and 217 transitions. [2022-07-13 18:00:09,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 18:00:09,461 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-13 18:00:09,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:00:09,467 INFO L225 Difference]: With dead ends: 158 [2022-07-13 18:00:09,468 INFO L226 Difference]: Without dead ends: 74 [2022-07-13 18:00:09,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 18:00:09,491 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 18:00:09,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 18:00:09,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-07-13 18:00:09,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-07-13 18:00:09,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 65 states have internal predecessors, (77), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-13 18:00:09,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 96 transitions. [2022-07-13 18:00:09,558 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 96 transitions. Word has length 19 [2022-07-13 18:00:09,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:00:09,559 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 96 transitions. [2022-07-13 18:00:09,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:00:09,560 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 96 transitions. [2022-07-13 18:00:09,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-13 18:00:09,563 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:00:09,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:00:09,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 18:00:09,564 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:00:09,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:00:09,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1018100204, now seen corresponding path program 1 times [2022-07-13 18:00:09,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:00:09,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822540625] [2022-07-13 18:00:09,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:00:09,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:00:09,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:09,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:00:09,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:00:09,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822540625] [2022-07-13 18:00:09,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822540625] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:00:09,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:00:09,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 18:00:09,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450635169] [2022-07-13 18:00:09,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:00:09,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 18:00:09,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:00:09,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 18:00:09,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:00:09,702 INFO L87 Difference]: Start difference. First operand 74 states and 96 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:00:09,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:00:09,750 INFO L93 Difference]: Finished difference Result 113 states and 147 transitions. [2022-07-13 18:00:09,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 18:00:09,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-07-13 18:00:09,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:00:09,752 INFO L225 Difference]: With dead ends: 113 [2022-07-13 18:00:09,753 INFO L226 Difference]: Without dead ends: 65 [2022-07-13 18:00:09,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 18:00:09,756 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 13 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 18:00:09,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 149 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 18:00:09,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-07-13 18:00:09,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-07-13 18:00:09,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 52 states have (on average 1.3461538461538463) internal successors, (70), 59 states have internal predecessors, (70), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-13 18:00:09,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 84 transitions. [2022-07-13 18:00:09,784 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 84 transitions. Word has length 20 [2022-07-13 18:00:09,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:00:09,784 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 84 transitions. [2022-07-13 18:00:09,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:00:09,784 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 84 transitions. [2022-07-13 18:00:09,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-13 18:00:09,785 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:00:09,785 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:00:09,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 18:00:09,785 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:00:09,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:00:09,786 INFO L85 PathProgramCache]: Analyzing trace with hash -2024480710, now seen corresponding path program 1 times [2022-07-13 18:00:09,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:00:09,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356411063] [2022-07-13 18:00:09,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:00:09,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:00:09,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:09,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:00:09,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:00:09,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356411063] [2022-07-13 18:00:09,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356411063] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:00:09,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:00:09,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 18:00:09,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935819024] [2022-07-13 18:00:09,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:00:09,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 18:00:09,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:00:09,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 18:00:09,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-13 18:00:09,927 INFO L87 Difference]: Start difference. First operand 65 states and 84 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:00:10,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:00:10,080 INFO L93 Difference]: Finished difference Result 123 states and 162 transitions. [2022-07-13 18:00:10,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 18:00:10,080 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-07-13 18:00:10,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:00:10,082 INFO L225 Difference]: With dead ends: 123 [2022-07-13 18:00:10,082 INFO L226 Difference]: Without dead ends: 65 [2022-07-13 18:00:10,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-13 18:00:10,085 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 109 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 18:00:10,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 175 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 18:00:10,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-07-13 18:00:10,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-07-13 18:00:10,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 59 states have internal predecessors, (69), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-13 18:00:10,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 83 transitions. [2022-07-13 18:00:10,120 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 83 transitions. Word has length 25 [2022-07-13 18:00:10,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:00:10,120 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 83 transitions. [2022-07-13 18:00:10,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:00:10,121 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 83 transitions. [2022-07-13 18:00:10,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-13 18:00:10,137 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:00:10,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:00:10,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 18:00:10,137 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:00:10,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:00:10,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1530438702, now seen corresponding path program 1 times [2022-07-13 18:00:10,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:00:10,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256306649] [2022-07-13 18:00:10,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:00:10,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:00:10,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:10,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 18:00:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:10,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 18:00:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:10,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:00:10,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:00:10,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256306649] [2022-07-13 18:00:10,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256306649] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:00:10,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:00:10,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 18:00:10,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480456956] [2022-07-13 18:00:10,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:00:10,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 18:00:10,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:00:10,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 18:00:10,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 18:00:10,276 INFO L87 Difference]: Start difference. First operand 65 states and 83 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 18:00:10,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:00:10,416 INFO L93 Difference]: Finished difference Result 186 states and 238 transitions. [2022-07-13 18:00:10,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 18:00:10,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2022-07-13 18:00:10,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:00:10,420 INFO L225 Difference]: With dead ends: 186 [2022-07-13 18:00:10,420 INFO L226 Difference]: Without dead ends: 128 [2022-07-13 18:00:10,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-13 18:00:10,428 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 149 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 18:00:10,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 269 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 18:00:10,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-07-13 18:00:10,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 122. [2022-07-13 18:00:10,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 98 states have (on average 1.2755102040816326) internal successors, (125), 105 states have internal predecessors, (125), 10 states have call successors, (10), 10 states have call predecessors, (10), 13 states have return successors, (15), 11 states have call predecessors, (15), 10 states have call successors, (15) [2022-07-13 18:00:10,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2022-07-13 18:00:10,451 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 35 [2022-07-13 18:00:10,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:00:10,452 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2022-07-13 18:00:10,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 18:00:10,452 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2022-07-13 18:00:10,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-13 18:00:10,453 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:00:10,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:00:10,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 18:00:10,454 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:00:10,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:00:10,454 INFO L85 PathProgramCache]: Analyzing trace with hash 699766483, now seen corresponding path program 1 times [2022-07-13 18:00:10,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:00:10,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952271339] [2022-07-13 18:00:10,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:00:10,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:00:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:10,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 18:00:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:10,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:00:10,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:00:10,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952271339] [2022-07-13 18:00:10,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952271339] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:00:10,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:00:10,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 18:00:10,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550264138] [2022-07-13 18:00:10,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:00:10,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 18:00:10,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:00:10,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 18:00:10,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 18:00:10,619 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 18:00:10,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:00:10,966 INFO L93 Difference]: Finished difference Result 346 states and 449 transitions. [2022-07-13 18:00:10,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 18:00:10,966 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-07-13 18:00:10,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:00:10,970 INFO L225 Difference]: With dead ends: 346 [2022-07-13 18:00:10,970 INFO L226 Difference]: Without dead ends: 231 [2022-07-13 18:00:10,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-07-13 18:00:10,974 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 143 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 18:00:10,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 360 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 18:00:10,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-07-13 18:00:11,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 198. [2022-07-13 18:00:11,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 159 states have (on average 1.2767295597484276) internal successors, (203), 168 states have internal predecessors, (203), 18 states have call successors, (18), 18 states have call predecessors, (18), 20 states have return successors, (28), 18 states have call predecessors, (28), 18 states have call successors, (28) [2022-07-13 18:00:11,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 249 transitions. [2022-07-13 18:00:11,023 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 249 transitions. Word has length 39 [2022-07-13 18:00:11,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:00:11,023 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 249 transitions. [2022-07-13 18:00:11,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 18:00:11,023 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 249 transitions. [2022-07-13 18:00:11,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-13 18:00:11,028 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:00:11,028 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:00:11,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 18:00:11,029 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:00:11,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:00:11,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1720834837, now seen corresponding path program 1 times [2022-07-13 18:00:11,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:00:11,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714143897] [2022-07-13 18:00:11,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:00:11,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:00:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:11,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 18:00:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:11,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:00:11,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:00:11,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714143897] [2022-07-13 18:00:11,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714143897] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:00:11,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:00:11,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 18:00:11,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635086537] [2022-07-13 18:00:11,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:00:11,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 18:00:11,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:00:11,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 18:00:11,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 18:00:11,094 INFO L87 Difference]: Start difference. First operand 198 states and 249 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 18:00:11,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:00:11,198 INFO L93 Difference]: Finished difference Result 403 states and 514 transitions. [2022-07-13 18:00:11,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 18:00:11,198 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-07-13 18:00:11,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:00:11,202 INFO L225 Difference]: With dead ends: 403 [2022-07-13 18:00:11,202 INFO L226 Difference]: Without dead ends: 212 [2022-07-13 18:00:11,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-13 18:00:11,204 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 59 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 18:00:11,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 338 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 18:00:11,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-07-13 18:00:11,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 204. [2022-07-13 18:00:11,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 165 states have (on average 1.2666666666666666) internal successors, (209), 174 states have internal predecessors, (209), 18 states have call successors, (18), 18 states have call predecessors, (18), 20 states have return successors, (28), 18 states have call predecessors, (28), 18 states have call successors, (28) [2022-07-13 18:00:11,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 255 transitions. [2022-07-13 18:00:11,223 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 255 transitions. Word has length 39 [2022-07-13 18:00:11,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:00:11,224 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 255 transitions. [2022-07-13 18:00:11,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 18:00:11,224 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 255 transitions. [2022-07-13 18:00:11,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-13 18:00:11,227 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:00:11,227 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:00:11,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 18:00:11,227 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:00:11,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:00:11,228 INFO L85 PathProgramCache]: Analyzing trace with hash 709717587, now seen corresponding path program 1 times [2022-07-13 18:00:11,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:00:11,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744405010] [2022-07-13 18:00:11,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:00:11,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:00:11,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:11,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 18:00:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:11,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:00:11,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:00:11,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744405010] [2022-07-13 18:00:11,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744405010] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:00:11,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:00:11,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 18:00:11,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848075413] [2022-07-13 18:00:11,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:00:11,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 18:00:11,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:00:11,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 18:00:11,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 18:00:11,307 INFO L87 Difference]: Start difference. First operand 204 states and 255 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 18:00:11,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:00:11,381 INFO L93 Difference]: Finished difference Result 372 states and 470 transitions. [2022-07-13 18:00:11,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 18:00:11,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-07-13 18:00:11,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:00:11,383 INFO L225 Difference]: With dead ends: 372 [2022-07-13 18:00:11,383 INFO L226 Difference]: Without dead ends: 175 [2022-07-13 18:00:11,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:00:11,384 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 60 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 18:00:11,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 224 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 18:00:11,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-07-13 18:00:11,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 170. [2022-07-13 18:00:11,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 137 states have (on average 1.2408759124087592) internal successors, (170), 145 states have internal predecessors, (170), 15 states have call successors, (15), 15 states have call predecessors, (15), 17 states have return successors, (20), 15 states have call predecessors, (20), 15 states have call successors, (20) [2022-07-13 18:00:11,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 205 transitions. [2022-07-13 18:00:11,391 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 205 transitions. Word has length 39 [2022-07-13 18:00:11,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:00:11,392 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 205 transitions. [2022-07-13 18:00:11,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 18:00:11,392 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 205 transitions. [2022-07-13 18:00:11,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-13 18:00:11,393 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:00:11,393 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:00:11,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 18:00:11,393 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:00:11,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:00:11,394 INFO L85 PathProgramCache]: Analyzing trace with hash 11284582, now seen corresponding path program 1 times [2022-07-13 18:00:11,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:00:11,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711853969] [2022-07-13 18:00:11,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:00:11,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:00:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:11,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 18:00:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:11,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 18:00:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:11,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:00:11,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:00:11,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711853969] [2022-07-13 18:00:11,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711853969] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:00:11,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:00:11,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 18:00:11,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496712886] [2022-07-13 18:00:11,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:00:11,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 18:00:11,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:00:11,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 18:00:11,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 18:00:11,448 INFO L87 Difference]: Start difference. First operand 170 states and 205 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 18:00:12,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:00:12,371 INFO L93 Difference]: Finished difference Result 333 states and 402 transitions. [2022-07-13 18:00:12,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 18:00:12,371 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2022-07-13 18:00:12,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:00:12,372 INFO L225 Difference]: With dead ends: 333 [2022-07-13 18:00:12,372 INFO L226 Difference]: Without dead ends: 170 [2022-07-13 18:00:12,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-13 18:00:12,373 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 98 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 18:00:12,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 314 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 18:00:12,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-07-13 18:00:12,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 168. [2022-07-13 18:00:12,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 135 states have (on average 1.2296296296296296) internal successors, (166), 143 states have internal predecessors, (166), 15 states have call successors, (15), 15 states have call predecessors, (15), 17 states have return successors, (20), 15 states have call predecessors, (20), 15 states have call successors, (20) [2022-07-13 18:00:12,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 201 transitions. [2022-07-13 18:00:12,393 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 201 transitions. Word has length 41 [2022-07-13 18:00:12,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:00:12,394 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 201 transitions. [2022-07-13 18:00:12,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 18:00:12,394 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 201 transitions. [2022-07-13 18:00:12,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-13 18:00:12,395 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:00:12,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:00:12,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 18:00:12,404 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:00:12,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:00:12,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1672553323, now seen corresponding path program 1 times [2022-07-13 18:00:12,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:00:12,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754694052] [2022-07-13 18:00:12,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:00:12,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:00:12,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:12,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-13 18:00:12,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:12,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 18:00:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:12,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:00:12,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:00:12,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754694052] [2022-07-13 18:00:12,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754694052] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:00:12,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:00:12,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:00:12,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369770014] [2022-07-13 18:00:12,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:00:12,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:00:12,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:00:12,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:00:12,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:00:12,536 INFO L87 Difference]: Start difference. First operand 168 states and 201 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 18:00:12,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:00:12,852 INFO L93 Difference]: Finished difference Result 379 states and 482 transitions. [2022-07-13 18:00:12,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 18:00:12,853 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2022-07-13 18:00:12,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:00:12,854 INFO L225 Difference]: With dead ends: 379 [2022-07-13 18:00:12,854 INFO L226 Difference]: Without dead ends: 259 [2022-07-13 18:00:12,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-13 18:00:12,857 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 164 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 18:00:12,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 445 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 18:00:12,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-07-13 18:00:12,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 253. [2022-07-13 18:00:12,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 202 states have (on average 1.2277227722772277) internal successors, (248), 215 states have internal predecessors, (248), 24 states have call successors, (24), 23 states have call predecessors, (24), 26 states have return successors, (41), 24 states have call predecessors, (41), 24 states have call successors, (41) [2022-07-13 18:00:12,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 313 transitions. [2022-07-13 18:00:12,885 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 313 transitions. Word has length 43 [2022-07-13 18:00:12,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:00:12,885 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 313 transitions. [2022-07-13 18:00:12,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 18:00:12,885 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 313 transitions. [2022-07-13 18:00:12,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-13 18:00:12,886 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:00:12,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:00:12,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 18:00:12,887 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:00:12,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:00:12,887 INFO L85 PathProgramCache]: Analyzing trace with hash -422364352, now seen corresponding path program 1 times [2022-07-13 18:00:12,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:00:12,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372602185] [2022-07-13 18:00:12,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:00:12,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:00:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:12,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-13 18:00:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:12,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 18:00:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:12,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-13 18:00:12,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:12,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:00:12,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:00:12,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372602185] [2022-07-13 18:00:12,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372602185] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:00:12,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:00:12,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 18:00:12,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183319023] [2022-07-13 18:00:12,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:00:12,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 18:00:12,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:00:12,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 18:00:12,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 18:00:12,949 INFO L87 Difference]: Start difference. First operand 253 states and 313 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 18:00:13,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:00:13,289 INFO L93 Difference]: Finished difference Result 272 states and 333 transitions. [2022-07-13 18:00:13,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-13 18:00:13,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2022-07-13 18:00:13,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:00:13,291 INFO L225 Difference]: With dead ends: 272 [2022-07-13 18:00:13,291 INFO L226 Difference]: Without dead ends: 270 [2022-07-13 18:00:13,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-07-13 18:00:13,291 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 173 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 18:00:13,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 378 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 18:00:13,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-07-13 18:00:13,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 253. [2022-07-13 18:00:13,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 202 states have (on average 1.2128712871287128) internal successors, (245), 215 states have internal predecessors, (245), 24 states have call successors, (24), 23 states have call predecessors, (24), 26 states have return successors, (41), 24 states have call predecessors, (41), 24 states have call successors, (41) [2022-07-13 18:00:13,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 310 transitions. [2022-07-13 18:00:13,304 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 310 transitions. Word has length 45 [2022-07-13 18:00:13,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:00:13,304 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 310 transitions. [2022-07-13 18:00:13,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 18:00:13,305 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 310 transitions. [2022-07-13 18:00:13,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-13 18:00:13,305 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:00:13,306 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:00:13,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 18:00:13,306 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:00:13,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:00:13,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1050725005, now seen corresponding path program 1 times [2022-07-13 18:00:13,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:00:13,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671648868] [2022-07-13 18:00:13,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:00:13,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:00:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:13,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-13 18:00:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:13,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 18:00:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:13,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:00:13,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:13,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 18:00:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:13,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 18:00:13,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:13,494 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 18:00:13,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:00:13,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671648868] [2022-07-13 18:00:13,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671648868] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 18:00:13,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969689402] [2022-07-13 18:00:13,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:00:13,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 18:00:13,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 18:00:13,498 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 18:00:13,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 18:00:13,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:13,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 18:00:13,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 18:00:13,732 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 18:00:13,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 18:00:13,833 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 18:00:13,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969689402] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 18:00:13,833 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 18:00:13,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 9 [2022-07-13 18:00:13,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309859863] [2022-07-13 18:00:13,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 18:00:13,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 18:00:13,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:00:13,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 18:00:13,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-13 18:00:13,835 INFO L87 Difference]: Start difference. First operand 253 states and 310 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 18:00:14,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:00:14,185 INFO L93 Difference]: Finished difference Result 586 states and 754 transitions. [2022-07-13 18:00:14,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-13 18:00:14,186 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 78 [2022-07-13 18:00:14,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:00:14,190 INFO L225 Difference]: With dead ends: 586 [2022-07-13 18:00:14,190 INFO L226 Difference]: Without dead ends: 381 [2022-07-13 18:00:14,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 166 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2022-07-13 18:00:14,191 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 231 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 18:00:14,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 554 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 18:00:14,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-07-13 18:00:14,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 348. [2022-07-13 18:00:14,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 276 states have (on average 1.213768115942029) internal successors, (335), 294 states have internal predecessors, (335), 34 states have call successors, (34), 33 states have call predecessors, (34), 37 states have return successors, (61), 32 states have call predecessors, (61), 34 states have call successors, (61) [2022-07-13 18:00:14,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 430 transitions. [2022-07-13 18:00:14,211 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 430 transitions. Word has length 78 [2022-07-13 18:00:14,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:00:14,212 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 430 transitions. [2022-07-13 18:00:14,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 18:00:14,212 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 430 transitions. [2022-07-13 18:00:14,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-13 18:00:14,213 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:00:14,213 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:00:14,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-13 18:00:14,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-13 18:00:14,426 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:00:14,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:00:14,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1937588267, now seen corresponding path program 2 times [2022-07-13 18:00:14,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:00:14,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410589925] [2022-07-13 18:00:14,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:00:14,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:00:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:14,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-13 18:00:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:14,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 18:00:14,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:14,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:00:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:14,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 18:00:14,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:14,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-13 18:00:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:14,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 18:00:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:14,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-13 18:00:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:14,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 18:00:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:14,612 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 54 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-13 18:00:14,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:00:14,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410589925] [2022-07-13 18:00:14,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410589925] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 18:00:14,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682415106] [2022-07-13 18:00:14,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 18:00:14,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 18:00:14,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 18:00:14,614 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 18:00:14,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 18:00:14,716 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 18:00:14,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 18:00:14,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 18:00:14,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 18:00:14,813 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-13 18:00:14,813 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 18:00:14,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682415106] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:00:14,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 18:00:14,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-07-13 18:00:14,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171376519] [2022-07-13 18:00:14,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:00:14,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 18:00:14,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:00:14,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 18:00:14,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-13 18:00:14,815 INFO L87 Difference]: Start difference. First operand 348 states and 430 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-13 18:00:15,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:00:15,011 INFO L93 Difference]: Finished difference Result 927 states and 1188 transitions. [2022-07-13 18:00:15,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 18:00:15,012 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 113 [2022-07-13 18:00:15,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:00:15,015 INFO L225 Difference]: With dead ends: 927 [2022-07-13 18:00:15,015 INFO L226 Difference]: Without dead ends: 626 [2022-07-13 18:00:15,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 126 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2022-07-13 18:00:15,017 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 210 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 18:00:15,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 532 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 18:00:15,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2022-07-13 18:00:15,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 565. [2022-07-13 18:00:15,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 450 states have (on average 1.2066666666666668) internal successors, (543), 475 states have internal predecessors, (543), 55 states have call successors, (55), 54 states have call predecessors, (55), 59 states have return successors, (96), 51 states have call predecessors, (96), 55 states have call successors, (96) [2022-07-13 18:00:15,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 694 transitions. [2022-07-13 18:00:15,052 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 694 transitions. Word has length 113 [2022-07-13 18:00:15,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:00:15,052 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 694 transitions. [2022-07-13 18:00:15,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-13 18:00:15,052 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 694 transitions. [2022-07-13 18:00:15,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-13 18:00:15,057 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 18:00:15,057 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:00:15,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 18:00:15,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-13 18:00:15,272 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 18:00:15,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 18:00:15,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1481360023, now seen corresponding path program 1 times [2022-07-13 18:00:15,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 18:00:15,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20835122] [2022-07-13 18:00:15,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 18:00:15,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 18:00:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:15,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-13 18:00:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:15,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 18:00:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:15,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 18:00:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:15,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 18:00:15,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:15,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-13 18:00:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:15,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 18:00:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:15,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-13 18:00:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:15,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 18:00:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 18:00:15,351 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-13 18:00:15,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 18:00:15,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20835122] [2022-07-13 18:00:15,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20835122] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 18:00:15,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 18:00:15,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 18:00:15,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933573596] [2022-07-13 18:00:15,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 18:00:15,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 18:00:15,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 18:00:15,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 18:00:15,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-13 18:00:15,354 INFO L87 Difference]: Start difference. First operand 565 states and 694 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-13 18:00:15,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 18:00:15,465 INFO L93 Difference]: Finished difference Result 773 states and 939 transitions. [2022-07-13 18:00:15,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 18:00:15,466 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 113 [2022-07-13 18:00:15,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 18:00:15,467 INFO L225 Difference]: With dead ends: 773 [2022-07-13 18:00:15,467 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 18:00:15,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-07-13 18:00:15,469 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 105 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 18:00:15,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 277 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 18:00:15,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 18:00:15,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 18:00:15,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 18:00:15,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 18:00:15,471 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 113 [2022-07-13 18:00:15,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 18:00:15,471 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 18:00:15,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-13 18:00:15,471 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 18:00:15,471 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 18:00:15,473 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 18:00:15,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-13 18:00:15,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-13 18:00:16,870 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 731 737) no Hoare annotation was computed. [2022-07-13 18:00:16,870 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 731 737) the Hoare annotation is: true [2022-07-13 18:00:16,871 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 624 635) the Hoare annotation is: true [2022-07-13 18:00:16,871 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 624 635) no Hoare annotation was computed. [2022-07-13 18:00:16,871 INFO L899 garLoopResultBuilder]: For program point L628-1(lines 624 635) no Hoare annotation was computed. [2022-07-13 18:00:16,871 INFO L899 garLoopResultBuilder]: For program point L890(lines 890 894) no Hoare annotation was computed. [2022-07-13 18:00:16,871 INFO L895 garLoopResultBuilder]: At program point L696(lines 691 699) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-13 18:00:16,871 INFO L899 garLoopResultBuilder]: For program point L890-2(lines 890 894) no Hoare annotation was computed. [2022-07-13 18:00:16,871 INFO L895 garLoopResultBuilder]: At program point L779(line 779) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-13 18:00:16,871 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 707 730) no Hoare annotation was computed. [2022-07-13 18:00:16,872 INFO L895 garLoopResultBuilder]: At program point L784(line 784) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 (not (<= 1 |old(~waterLevel~0)|)) (= |old(~waterLevel~0)| ~waterLevel~0)) (or .cse0 .cse2 (not (= |old(~waterLevel~0)| 1)) .cse1) (or .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-13 18:00:16,872 INFO L895 garLoopResultBuilder]: At program point L784-1(lines 765 789) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= 1 ~systemActive~0))) (let ((.cse2 (not .cse4)) (.cse3 (and (<= 2 ~waterLevel~0) .cse4 .cse1)) (.cse0 (= ~pumpRunning~0 0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and .cse0 .cse1) .cse2 .cse3 (not (<= 1 |old(~waterLevel~0)|))) (or .cse2 .cse3 (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse0 (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (<= 1 ~waterLevel~0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) (not (<= 2 |old(~waterLevel~0)|)))))) [2022-07-13 18:00:16,872 INFO L899 garLoopResultBuilder]: For program point L718-1(lines 718 724) no Hoare annotation was computed. [2022-07-13 18:00:16,872 INFO L899 garLoopResultBuilder]: For program point L553(line 553) no Hoare annotation was computed. [2022-07-13 18:00:16,872 INFO L895 garLoopResultBuilder]: At program point L673(lines 668 676) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 0))) (and (or .cse0 (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse1 .cse2 (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (<= 1 ~waterLevel~0) (<= 1 |timeShift_getWaterLevel_#res#1|) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (<= 2 |timeShift_getWaterLevel_#res#1|)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse1 (not (= |old(~waterLevel~0)| 1)) .cse0 (and .cse2 (= ~waterLevel~0 1) (= |timeShift_getWaterLevel_#res#1| 1))))) [2022-07-13 18:00:16,872 INFO L895 garLoopResultBuilder]: At program point L896(lines 881 899) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 ~waterLevel~0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-13 18:00:16,873 INFO L895 garLoopResultBuilder]: At program point L822(lines 817 825) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-13 18:00:16,873 INFO L895 garLoopResultBuilder]: At program point L554(lines 549 556) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-13 18:00:16,873 INFO L899 garLoopResultBuilder]: For program point L711-1(lines 710 729) no Hoare annotation was computed. [2022-07-13 18:00:16,873 INFO L899 garLoopResultBuilder]: For program point L773(lines 773 781) no Hoare annotation was computed. [2022-07-13 18:00:16,873 INFO L899 garLoopResultBuilder]: For program point L769(lines 769 786) no Hoare annotation was computed. [2022-07-13 18:00:16,873 INFO L899 garLoopResultBuilder]: For program point L604(lines 604 608) no Hoare annotation was computed. [2022-07-13 18:00:16,873 INFO L895 garLoopResultBuilder]: At program point L604-2(lines 600 611) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-13 18:00:16,873 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 707 730) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) .cse0 (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1))))) [2022-07-13 18:00:16,873 INFO L899 garLoopResultBuilder]: For program point L431(lines 431 437) no Hoare annotation was computed. [2022-07-13 18:00:16,874 INFO L899 garLoopResultBuilder]: For program point L427(lines 427 440) no Hoare annotation was computed. [2022-07-13 18:00:16,874 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 707 730) no Hoare annotation was computed. [2022-07-13 18:00:16,874 INFO L895 garLoopResultBuilder]: At program point L427-1(lines 419 443) the Hoare annotation is: (let ((.cse5 (= 1 ~systemActive~0))) (let ((.cse1 (and .cse5 (= |old(~waterLevel~0)| ~waterLevel~0) (<= 2 |timeShift_getWaterLevel_#res#1|) (<= 2 |timeShift___utac_acc__Specification4_spec__1_~tmp~3#1|))) (.cse3 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse2 (not .cse5))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse4 (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~3#1|) (<= 1 ~waterLevel~0) (<= 1 |timeShift_getWaterLevel_#res#1|) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) .cse3) (or .cse0 (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~3#1| 1) .cse4 (= ~waterLevel~0 1) (= |timeShift_getWaterLevel_#res#1| 1)) (not (= |old(~waterLevel~0)| 1)) .cse2)))) [2022-07-13 18:00:16,874 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 553) no Hoare annotation was computed. [2022-07-13 18:00:16,874 INFO L895 garLoopResultBuilder]: At program point L803(lines 798 805) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= ~pumpRunning~0 0) (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (<= 1 ~waterLevel~0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-13 18:00:16,874 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 447 476) no Hoare annotation was computed. [2022-07-13 18:00:16,875 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 447 476) the Hoare annotation is: true [2022-07-13 18:00:16,875 INFO L902 garLoopResultBuilder]: At program point L472(lines 447 476) the Hoare annotation is: true [2022-07-13 18:00:16,875 INFO L899 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2022-07-13 18:00:16,875 INFO L899 garLoopResultBuilder]: For program point L461(lines 461 465) no Hoare annotation was computed. [2022-07-13 18:00:16,875 INFO L902 garLoopResultBuilder]: At program point L461-1(lines 461 465) the Hoare annotation is: true [2022-07-13 18:00:16,875 INFO L899 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2022-07-13 18:00:16,875 INFO L902 garLoopResultBuilder]: At program point L457-2(lines 457 471) the Hoare annotation is: true [2022-07-13 18:00:16,875 INFO L902 garLoopResultBuilder]: At program point L453(line 453) the Hoare annotation is: true [2022-07-13 18:00:16,875 INFO L899 garLoopResultBuilder]: For program point L453-1(line 453) no Hoare annotation was computed. [2022-07-13 18:00:16,875 INFO L899 garLoopResultBuilder]: For program point L535(lines 535 542) no Hoare annotation was computed. [2022-07-13 18:00:16,876 INFO L899 garLoopResultBuilder]: For program point L535-2(lines 535 542) no Hoare annotation was computed. [2022-07-13 18:00:16,876 INFO L902 garLoopResultBuilder]: At program point L519(lines 512 521) the Hoare annotation is: true [2022-07-13 18:00:16,876 INFO L902 garLoopResultBuilder]: At program point L544(lines 525 547) the Hoare annotation is: true [2022-07-13 18:00:16,876 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-13 18:00:16,876 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-13 18:00:16,876 INFO L895 garLoopResultBuilder]: At program point L573(lines 569 575) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-13 18:00:16,876 INFO L899 garLoopResultBuilder]: For program point L957(lines 957 961) no Hoare annotation was computed. [2022-07-13 18:00:16,876 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-13 18:00:16,877 INFO L895 garLoopResultBuilder]: At program point L957-2(lines 949 962) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2022-07-13 18:00:16,877 INFO L899 garLoopResultBuilder]: For program point L920(lines 919 966) no Hoare annotation was computed. [2022-07-13 18:00:16,877 INFO L899 garLoopResultBuilder]: For program point L949(lines 949 962) no Hoare annotation was computed. [2022-07-13 18:00:16,877 INFO L895 garLoopResultBuilder]: At program point L941(line 941) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2022-07-13 18:00:16,877 INFO L902 garLoopResultBuilder]: At program point L970(lines 909 974) the Hoare annotation is: true [2022-07-13 18:00:16,877 INFO L899 garLoopResultBuilder]: For program point L929(lines 929 935) no Hoare annotation was computed. [2022-07-13 18:00:16,877 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-13 18:00:16,877 INFO L899 garLoopResultBuilder]: For program point L929-1(lines 929 935) no Hoare annotation was computed. [2022-07-13 18:00:16,877 INFO L895 garLoopResultBuilder]: At program point L508(lines 504 510) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-13 18:00:16,878 INFO L899 garLoopResultBuilder]: For program point L921(lines 921 925) no Hoare annotation was computed. [2022-07-13 18:00:16,878 INFO L895 garLoopResultBuilder]: At program point L905(lines 900 907) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2022-07-13 18:00:16,878 INFO L895 garLoopResultBuilder]: At program point L967(lines 918 968) the Hoare annotation is: false [2022-07-13 18:00:16,878 INFO L895 garLoopResultBuilder]: At program point L588(lines 583 591) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-13 18:00:16,878 INFO L899 garLoopResultBuilder]: For program point L939(lines 939 945) no Hoare annotation was computed. [2022-07-13 18:00:16,878 INFO L899 garLoopResultBuilder]: For program point L939-1(lines 939 945) no Hoare annotation was computed. [2022-07-13 18:00:16,878 INFO L895 garLoopResultBuilder]: At program point L580(lines 576 582) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-13 18:00:16,878 INFO L895 garLoopResultBuilder]: At program point L964(lines 919 966) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2022-07-13 18:00:16,878 INFO L895 garLoopResultBuilder]: At program point L931(line 931) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2022-07-13 18:00:16,879 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 739 763) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0))))) [2022-07-13 18:00:16,879 INFO L895 garLoopResultBuilder]: At program point L795(lines 790 797) the Hoare annotation is: (or (not (= ~waterLevel~0 1)) (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2022-07-13 18:00:16,879 INFO L895 garLoopResultBuilder]: At program point L758(line 758) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2022-07-13 18:00:16,879 INFO L899 garLoopResultBuilder]: For program point L758-1(lines 739 763) no Hoare annotation was computed. [2022-07-13 18:00:16,880 INFO L895 garLoopResultBuilder]: At program point L686(lines 677 690) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) (and .cse2 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (and .cse2 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1))))) [2022-07-13 18:00:16,880 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 739 763) no Hoare annotation was computed. [2022-07-13 18:00:16,880 INFO L895 garLoopResultBuilder]: At program point L753(line 753) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= |processEnvironment__wrappee__highWaterSensor_~tmp~5#1| 0))) (and (or .cse0 .cse1 (and .cse2 .cse3) (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (and .cse2 .cse3 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~7#1| 1) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1))))) [2022-07-13 18:00:16,881 INFO L895 garLoopResultBuilder]: At program point L877(lines 862 880) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 0) .cse1 (not (<= 1 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~1#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~7#1| 1) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1)) .cse1))) [2022-07-13 18:00:16,881 INFO L899 garLoopResultBuilder]: For program point L747(lines 747 755) no Hoare annotation was computed. [2022-07-13 18:00:16,881 INFO L899 garLoopResultBuilder]: For program point L681(lines 681 687) no Hoare annotation was computed. [2022-07-13 18:00:16,882 INFO L899 garLoopResultBuilder]: For program point L743(lines 743 760) no Hoare annotation was computed. [2022-07-13 18:00:16,882 INFO L899 garLoopResultBuilder]: For program point L871(lines 871 875) no Hoare annotation was computed. [2022-07-13 18:00:16,882 INFO L899 garLoopResultBuilder]: For program point L871-2(lines 871 875) no Hoare annotation was computed. [2022-07-13 18:00:16,882 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 612 623) no Hoare annotation was computed. [2022-07-13 18:00:16,882 INFO L899 garLoopResultBuilder]: For program point L616-1(lines 612 623) no Hoare annotation was computed. [2022-07-13 18:00:16,882 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 612 623) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= ~pumpRunning~0 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|)) .cse1) (or .cse0 .cse1 (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-13 18:00:16,884 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 18:00:16,886 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 18:00:16,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 06:00:16 BoogieIcfgContainer [2022-07-13 18:00:16,904 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 18:00:16,904 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 18:00:16,905 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 18:00:16,905 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 18:00:16,905 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:00:08" (3/4) ... [2022-07-13 18:00:16,907 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 18:00:16,911 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-13 18:00:16,911 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-13 18:00:16,911 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-13 18:00:16,912 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-13 18:00:16,912 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-07-13 18:00:16,923 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-13 18:00:16,929 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2022-07-13 18:00:16,930 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-13 18:00:16,931 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-13 18:00:16,931 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-13 18:00:16,932 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 18:00:16,932 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 18:00:16,932 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 18:00:16,950 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-07-13 18:00:16,951 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && tmp == systemActive) && waterLevel == 1 [2022-07-13 18:00:16,951 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((2 <= waterLevel && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && tmp == systemActive) || (((((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == systemActive) [2022-07-13 18:00:16,952 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) [2022-07-13 18:00:16,953 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((2 <= waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) && (((!(1 == systemActive) || ((2 <= waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel)) || ((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel))) [2022-07-13 18:00:16,954 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((2 <= waterLevel && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && tmp == systemActive) || (((((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == systemActive) [2022-07-13 18:00:16,954 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || ((((((((\result == 0 && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result) && 1 <= tmp___0)) || (\old(waterLevel) == waterLevel && 2 <= \result)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel == 1) && \result == 1)) [2022-07-13 18:00:16,954 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || (((1 == systemActive && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp)) || !(1 == systemActive)) || !(2 <= \old(waterLevel))) && ((((((1 == systemActive && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp) || !(1 == systemActive)) || ((((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result) && 1 <= tmp___0)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (((tmp == 1 && pumpRunning == 0) && waterLevel == 1) && \result == 1)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) [2022-07-13 18:00:16,954 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) [2022-07-13 18:00:16,954 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || (pumpRunning == 0 && \result == 0)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && \result == 1)) [2022-07-13 18:00:16,955 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) [2022-07-13 18:00:16,955 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || (((((pumpRunning == \old(pumpRunning) && \result == 0) && tmp == 0) && 1 <= \result) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel))) [2022-07-13 18:00:16,955 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || (((tmp___0 == 0 && tmp == 1) && \result == 0) && \result == 1)) || !(1 == systemActive)) [2022-07-13 18:00:16,955 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) [2022-07-13 18:00:16,955 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || ((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel))) [2022-07-13 18:00:16,956 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive) [2022-07-13 18:00:16,983 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 18:00:16,983 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 18:00:16,984 INFO L158 Benchmark]: Toolchain (without parser) took 9670.81ms. Allocated memory was 115.3MB in the beginning and 176.2MB in the end (delta: 60.8MB). Free memory was 82.0MB in the beginning and 147.1MB in the end (delta: -65.1MB). Peak memory consumption was 91.6MB. Max. memory is 16.1GB. [2022-07-13 18:00:16,984 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory was 39.2MB in the beginning and 39.2MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 18:00:16,984 INFO L158 Benchmark]: CACSL2BoogieTranslator took 652.29ms. Allocated memory is still 115.3MB. Free memory was 81.8MB in the beginning and 82.1MB in the end (delta: -355.3kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-13 18:00:16,985 INFO L158 Benchmark]: Boogie Procedure Inliner took 121.76ms. Allocated memory is still 115.3MB. Free memory was 82.1MB in the beginning and 79.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 18:00:16,985 INFO L158 Benchmark]: Boogie Preprocessor took 59.08ms. Allocated memory is still 115.3MB. Free memory was 79.8MB in the beginning and 78.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 18:00:16,985 INFO L158 Benchmark]: RCFGBuilder took 684.26ms. Allocated memory is still 115.3MB. Free memory was 78.1MB in the beginning and 62.1MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-13 18:00:16,986 INFO L158 Benchmark]: TraceAbstraction took 8068.74ms. Allocated memory was 115.3MB in the beginning and 176.2MB in the end (delta: 60.8MB). Free memory was 61.3MB in the beginning and 52.8MB in the end (delta: 8.5MB). Peak memory consumption was 72.6MB. Max. memory is 16.1GB. [2022-07-13 18:00:16,986 INFO L158 Benchmark]: Witness Printer took 78.96ms. Allocated memory is still 176.2MB. Free memory was 52.8MB in the beginning and 147.1MB in the end (delta: -94.3MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2022-07-13 18:00:16,990 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory was 39.2MB in the beginning and 39.2MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 652.29ms. Allocated memory is still 115.3MB. Free memory was 81.8MB in the beginning and 82.1MB in the end (delta: -355.3kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 121.76ms. Allocated memory is still 115.3MB. Free memory was 82.1MB in the beginning and 79.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.08ms. Allocated memory is still 115.3MB. Free memory was 79.8MB in the beginning and 78.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 684.26ms. Allocated memory is still 115.3MB. Free memory was 78.1MB in the beginning and 62.1MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8068.74ms. Allocated memory was 115.3MB in the beginning and 176.2MB in the end (delta: 60.8MB). Free memory was 61.3MB in the beginning and 52.8MB in the end (delta: 8.5MB). Peak memory consumption was 72.6MB. Max. memory is 16.1GB. * Witness Printer took 78.96ms. Allocated memory is still 176.2MB. Free memory was 52.8MB in the beginning and 147.1MB in the end (delta: -94.3MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 553]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 83 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.0s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1536 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1514 mSDsluCounter, 4120 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2879 mSDsCounter, 321 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1679 IncrementalHoareTripleChecker+Invalid, 2000 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 321 mSolverCounterUnsat, 1241 mSDtfsCounter, 1679 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 486 GetRequests, 356 SyntacticMatches, 8 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=565occurred in iteration=12, InterpolantAutomatonStates: 118, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 171 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 39 LocationsWithAnnotation, 999 PreInvPairs, 1082 NumberOfFragments, 1008 HoareAnnotationTreeSize, 999 FomulaSimplifications, 1371 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 39 FomulaSimplificationsInter, 3276 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 840 NumberOfCodeBlocks, 840 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 902 ConstructedInterpolants, 0 QuantifiedInterpolants, 1767 SizeOfPredicates, 8 NumberOfNonLiveVariables, 951 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 264/294 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 677]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || (pumpRunning == 0 && \result == 0)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && \result == 1)) - InvariantResult [Line: 419]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || (((1 == systemActive && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp)) || !(1 == systemActive)) || !(2 <= \old(waterLevel))) && ((((((1 == systemActive && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp) || !(1 == systemActive)) || ((((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result) && 1 <= tmp___0)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (((tmp == 1 && pumpRunning == 0) && waterLevel == 1) && \result == 1)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) - InvariantResult [Line: 569]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 900]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && tmp == systemActive) || (((((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == systemActive) - InvariantResult [Line: 457]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 817]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 909]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 798]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || ((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 668]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || ((((((((\result == 0 && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result) && 1 <= tmp___0)) || (\old(waterLevel) == waterLevel && 2 <= \result)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel == 1) && \result == 1)) - InvariantResult [Line: 862]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || (((tmp___0 == 0 && tmp == 1) && \result == 0) && \result == 1)) || !(1 == systemActive)) - InvariantResult [Line: 525]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 881]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || (((((pumpRunning == \old(pumpRunning) && \result == 0) && tmp == 0) && 1 <= \result) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 919]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && tmp == systemActive) || (((((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == systemActive) - InvariantResult [Line: 691]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 447]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 765]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((2 <= waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) && (((!(1 == systemActive) || ((2 <= waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel)) || ((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 918]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 549]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 504]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && tmp == systemActive) && waterLevel == 1 - InvariantResult [Line: 790]: Loop Invariant Derived loop invariant: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive) - InvariantResult [Line: 512]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-07-13 18:00:17,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE